Hydrogen internal combustion engine (H2 ICE) for racing

A hydrogen internal combustion engine (H2 ICE) is a modified version of a conventional ICE that burns hydrogen instead of gasoline or diesel, often using spark ignition and adapted fuel and air delivery systems to cope with hydrogen’s different properties.[10] Toyota has been developing hydrogen combustion engines in racing since 2021, initially in the Super Taikyu series with gaseous hydrogen and later with liquid hydrogen, and is now applying a hydrogen combustion powertrain in its TR LH2 Racing Prototype to demonstrate the sound, feel and performance potential of this technology in endurance racing.[1][10]